HI.XI.M.R3

From the FAA library

• Helicopter Flying Handbookp. 11-16
  Chapter 11: Helicopter Emergencies and Hazards › System Malfunctions › Antitorque System Failure

  limits and procedures and periodic maintenance and inspections, many system and equipment failures can be eliminated. Certain malfunctions or failures can be traced to some error on the part of the pilot; therefore, appropriate flying techniques and use of threat ... error management may help to prevent an emergency Antitorque System Failure Antitorque failure usually falls into one of two categories. One is failure of the power drive portion of the tail rotor disk resulting in a complete loss of antitorque…

• Helicopter Flying Handbookp. 3-3
  Chapter 3: Helicopter Flight Controls › Antitorque Pedals

  from a single cyclic located in the center of the helicopter. The cyclic can pivot in all directions. Antitorque Pedals The antitorque pedals, located on the cabin floor by the pilot’s feet, control the pitch and therefore the thrust ... tail rotor blades or other antitorque system. See Chapter 5, Helicopter Components, Sections, and Systems, for a discussion on these other systems. [Figure 3-5] Newton’s Third Law was discussed in Chapter 2, General Aerodynamics, stating that for every…

• Helicopter Flying Handbookp. 4-7
  Chapter 4: Helicopter Components, Sections, and Systems › Antitorque System

  Antitorque System Helicopters with a single, main rotor system require a separate antitorque system. This is most often accomplished through a variable pitch, antitorque rotor or tail rotor. [Figure 4-13] Pilots vary the thrust of the antitorque system ... transmission to ensure tail rotor rotation (and hence control) in the event that the engine quits. Usually, negative antitorque thrust is needed in autorotations to overcome transmission friction. Figure 4-12. Freewheeling unit in normal drive position and freewheeling position…

• Helicopter Flying Handbookp. 4-8
  Chapter 4: Helicopter Components, Sections, and Systems › Antitorque System › NOTAR®

  Fenestron Another form of antitorque system is the Fenestron or “fanin-tail” design. This system uses a series of rotating blades shrouded within a vertical tail. Because the blades are located within a circular duct, they are less likely ... into contact with people or objects. [Figure 4-14] NOTAR® Using the natural characteristics of helicopter aerodynamics, the NOTAR® antitorque system provides safe, quiet, responsive, foreign object damage (FOD) resistant directional control. The enclosed variable-pitch composite blade fan produces…

• Instrument Flying Handbookp. 8-17
  Chapter 8: Helicopter Attitude Instrument Flying › Instrument Takeoff

  Failure to maintain proper rotor RPM 5. Failure to maintain a standard rate turn during turning autorotations Servo Failure Most helicopters certified for single-pilot IFR flight are required to have autopilots, which greatly reduces pilot workload. If an autopilot ... land immediately because the workload increases tremendously. If an antitorque or collective servo fails, continuing to the next suitable landing site might be possible. Instrument Takeoff The procedures and techniques described here should be modified as necessary to conform…

• Aeronautical Information Manualp. 6-4-1
  Chapter 6. Emergency Procedures › Section 4. Two-way Radio Communications Failure › 6-4-1. Two-way Radio Communications Failure

  Section 4. Two-way Radio Communications Failure 6-4-1. Two-way Radio Communications Failure a. It is virtually impossible to provide regulations and procedures applicable to all possible situations associated with two-way radio communications failure. During ... radio communications failure, when confronted by a situation not covered in the regulation, pilots are expected to exercise good judgment in whatever action they elect to take. Should the situation so dictate they should not be reluctant…